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1da177e4 LT |
1 | /****************************************************************************** |
2 | * | |
3 | * Module Name: exoparg2 - AML execution - opcodes with 2 arguments | |
4 | * | |
5 | *****************************************************************************/ | |
6 | ||
7 | /* | |
4a90c7e8 | 8 | * Copyright (C) 2000 - 2006, R. Byron Moore |
1da177e4 LT |
9 | * All rights reserved. |
10 | * | |
11 | * Redistribution and use in source and binary forms, with or without | |
12 | * modification, are permitted provided that the following conditions | |
13 | * are met: | |
14 | * 1. Redistributions of source code must retain the above copyright | |
15 | * notice, this list of conditions, and the following disclaimer, | |
16 | * without modification. | |
17 | * 2. Redistributions in binary form must reproduce at minimum a disclaimer | |
18 | * substantially similar to the "NO WARRANTY" disclaimer below | |
19 | * ("Disclaimer") and any redistribution must be conditioned upon | |
20 | * including a substantially similar Disclaimer requirement for further | |
21 | * binary redistribution. | |
22 | * 3. Neither the names of the above-listed copyright holders nor the names | |
23 | * of any contributors may be used to endorse or promote products derived | |
24 | * from this software without specific prior written permission. | |
25 | * | |
26 | * Alternatively, this software may be distributed under the terms of the | |
27 | * GNU General Public License ("GPL") version 2 as published by the Free | |
28 | * Software Foundation. | |
29 | * | |
30 | * NO WARRANTY | |
31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
32 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
33 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR | |
34 | * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
35 | * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
36 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
37 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
38 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | |
39 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING | |
40 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE | |
41 | * POSSIBILITY OF SUCH DAMAGES. | |
42 | */ | |
43 | ||
1da177e4 LT |
44 | #include <acpi/acpi.h> |
45 | #include <acpi/acparser.h> | |
46 | #include <acpi/acinterp.h> | |
47 | #include <acpi/acevents.h> | |
48 | #include <acpi/amlcode.h> | |
49 | ||
1da177e4 | 50 | #define _COMPONENT ACPI_EXECUTER |
4be44fcd | 51 | ACPI_MODULE_NAME("exoparg2") |
1da177e4 LT |
52 | |
53 | /*! | |
54 | * Naming convention for AML interpreter execution routines. | |
55 | * | |
56 | * The routines that begin execution of AML opcodes are named with a common | |
57 | * convention based upon the number of arguments, the number of target operands, | |
58 | * and whether or not a value is returned: | |
59 | * | |
60 | * AcpiExOpcode_xA_yT_zR | |
61 | * | |
62 | * Where: | |
63 | * | |
64 | * xA - ARGUMENTS: The number of arguments (input operands) that are | |
65 | * required for this opcode type (1 through 6 args). | |
66 | * yT - TARGETS: The number of targets (output operands) that are required | |
67 | * for this opcode type (0, 1, or 2 targets). | |
68 | * zR - RETURN VALUE: Indicates whether this opcode type returns a value | |
69 | * as the function return (0 or 1). | |
70 | * | |
71 | * The AcpiExOpcode* functions are called via the Dispatcher component with | |
72 | * fully resolved operands. | |
73 | !*/ | |
1da177e4 LT |
74 | /******************************************************************************* |
75 | * | |
76 | * FUNCTION: acpi_ex_opcode_2A_0T_0R | |
77 | * | |
78 | * PARAMETERS: walk_state - Current walk state | |
79 | * | |
80 | * RETURN: Status | |
81 | * | |
82 | * DESCRIPTION: Execute opcode with two arguments, no target, and no return | |
83 | * value. | |
84 | * | |
85 | * ALLOCATION: Deletes both operands | |
86 | * | |
87 | ******************************************************************************/ | |
4be44fcd | 88 | acpi_status acpi_ex_opcode_2A_0T_0R(struct acpi_walk_state *walk_state) |
1da177e4 | 89 | { |
4be44fcd LB |
90 | union acpi_operand_object **operand = &walk_state->operands[0]; |
91 | struct acpi_namespace_node *node; | |
92 | u32 value; | |
93 | acpi_status status = AE_OK; | |
1da177e4 | 94 | |
b229cf92 | 95 | ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_0R, |
4be44fcd | 96 | acpi_ps_get_opcode_name(walk_state->opcode)); |
1da177e4 LT |
97 | |
98 | /* Examine the opcode */ | |
99 | ||
100 | switch (walk_state->opcode) { | |
4be44fcd | 101 | case AML_NOTIFY_OP: /* Notify (notify_object, notify_value) */ |
1da177e4 LT |
102 | |
103 | /* The first operand is a namespace node */ | |
104 | ||
4be44fcd | 105 | node = (struct acpi_namespace_node *)operand[0]; |
1da177e4 LT |
106 | |
107 | /* Second value is the notify value */ | |
108 | ||
109 | value = (u32) operand[1]->integer.value; | |
110 | ||
44f6c012 | 111 | /* Are notifies allowed on this object? */ |
1da177e4 | 112 | |
4be44fcd | 113 | if (!acpi_ev_is_notify_object(node)) { |
b8e4d893 BM |
114 | ACPI_ERROR((AE_INFO, |
115 | "Unexpected notify object type [%s]", | |
116 | acpi_ut_get_type_name(node->type))); | |
1da177e4 LT |
117 | |
118 | status = AE_AML_OPERAND_TYPE; | |
119 | break; | |
120 | } | |
1da177e4 LT |
121 | #ifdef ACPI_GPE_NOTIFY_CHECK |
122 | /* | |
123 | * GPE method wake/notify check. Here, we want to ensure that we | |
b229cf92 | 124 | * don't receive any "DeviceWake" Notifies from a GPE _Lxx or _Exx |
1da177e4 LT |
125 | * GPE method during system runtime. If we do, the GPE is marked |
126 | * as "wake-only" and disabled. | |
127 | * | |
128 | * 1) Is the Notify() value == device_wake? | |
129 | * 2) Is this a GPE deferred method? (An _Lxx or _Exx method) | |
130 | * 3) Did the original GPE happen at system runtime? | |
131 | * (versus during wake) | |
132 | * | |
133 | * If all three cases are true, this is a wake-only GPE that should | |
134 | * be disabled at runtime. | |
135 | */ | |
4be44fcd LB |
136 | if (value == 2) { /* device_wake */ |
137 | status = | |
138 | acpi_ev_check_for_wake_only_gpe(walk_state-> | |
139 | gpe_event_info); | |
140 | if (ACPI_FAILURE(status)) { | |
52fc0b02 | 141 | |
1da177e4 LT |
142 | /* AE_WAKE_ONLY_GPE only error, means ignore this notify */ |
143 | ||
4be44fcd | 144 | return_ACPI_STATUS(AE_OK) |
1da177e4 LT |
145 | } |
146 | } | |
147 | #endif | |
148 | ||
149 | /* | |
150 | * Dispatch the notify to the appropriate handler | |
151 | * NOTE: the request is queued for execution after this method | |
152 | * completes. The notify handlers are NOT invoked synchronously | |
153 | * from this thread -- because handlers may in turn run other | |
154 | * control methods. | |
155 | */ | |
4be44fcd | 156 | status = acpi_ev_queue_notify_request(node, value); |
1da177e4 LT |
157 | break; |
158 | ||
1da177e4 LT |
159 | default: |
160 | ||
b8e4d893 BM |
161 | ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", |
162 | walk_state->opcode)); | |
1da177e4 LT |
163 | status = AE_AML_BAD_OPCODE; |
164 | } | |
165 | ||
4be44fcd | 166 | return_ACPI_STATUS(status); |
1da177e4 LT |
167 | } |
168 | ||
1da177e4 LT |
169 | /******************************************************************************* |
170 | * | |
171 | * FUNCTION: acpi_ex_opcode_2A_2T_1R | |
172 | * | |
173 | * PARAMETERS: walk_state - Current walk state | |
174 | * | |
175 | * RETURN: Status | |
176 | * | |
177 | * DESCRIPTION: Execute a dyadic operator (2 operands) with 2 output targets | |
178 | * and one implicit return value. | |
179 | * | |
180 | ******************************************************************************/ | |
181 | ||
4be44fcd | 182 | acpi_status acpi_ex_opcode_2A_2T_1R(struct acpi_walk_state *walk_state) |
1da177e4 | 183 | { |
4be44fcd LB |
184 | union acpi_operand_object **operand = &walk_state->operands[0]; |
185 | union acpi_operand_object *return_desc1 = NULL; | |
186 | union acpi_operand_object *return_desc2 = NULL; | |
187 | acpi_status status; | |
1da177e4 | 188 | |
b229cf92 | 189 | ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_2T_1R, |
4be44fcd | 190 | acpi_ps_get_opcode_name(walk_state->opcode)); |
1da177e4 | 191 | |
44f6c012 RM |
192 | /* Execute the opcode */ |
193 | ||
1da177e4 | 194 | switch (walk_state->opcode) { |
44f6c012 RM |
195 | case AML_DIVIDE_OP: |
196 | ||
197 | /* Divide (Dividend, Divisor, remainder_result quotient_result) */ | |
1da177e4 | 198 | |
4be44fcd LB |
199 | return_desc1 = |
200 | acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); | |
1da177e4 LT |
201 | if (!return_desc1) { |
202 | status = AE_NO_MEMORY; | |
203 | goto cleanup; | |
204 | } | |
205 | ||
4be44fcd LB |
206 | return_desc2 = |
207 | acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); | |
1da177e4 LT |
208 | if (!return_desc2) { |
209 | status = AE_NO_MEMORY; | |
210 | goto cleanup; | |
211 | } | |
212 | ||
213 | /* Quotient to return_desc1, remainder to return_desc2 */ | |
214 | ||
4be44fcd LB |
215 | status = acpi_ut_divide(operand[0]->integer.value, |
216 | operand[1]->integer.value, | |
217 | &return_desc1->integer.value, | |
218 | &return_desc2->integer.value); | |
219 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
220 | goto cleanup; |
221 | } | |
222 | break; | |
223 | ||
1da177e4 LT |
224 | default: |
225 | ||
b8e4d893 BM |
226 | ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", |
227 | walk_state->opcode)); | |
1da177e4 LT |
228 | status = AE_AML_BAD_OPCODE; |
229 | goto cleanup; | |
230 | } | |
231 | ||
1da177e4 LT |
232 | /* Store the results to the target reference operands */ |
233 | ||
4be44fcd LB |
234 | status = acpi_ex_store(return_desc2, operand[2], walk_state); |
235 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
236 | goto cleanup; |
237 | } | |
238 | ||
4be44fcd LB |
239 | status = acpi_ex_store(return_desc1, operand[3], walk_state); |
240 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
241 | goto cleanup; |
242 | } | |
243 | ||
244 | /* Return the remainder */ | |
245 | ||
246 | walk_state->result_obj = return_desc1; | |
247 | ||
4be44fcd | 248 | cleanup: |
1da177e4 LT |
249 | /* |
250 | * Since the remainder is not returned indirectly, remove a reference to | |
251 | * it. Only the quotient is returned indirectly. | |
252 | */ | |
4be44fcd | 253 | acpi_ut_remove_reference(return_desc2); |
1da177e4 | 254 | |
4be44fcd | 255 | if (ACPI_FAILURE(status)) { |
52fc0b02 | 256 | |
1da177e4 LT |
257 | /* Delete the return object */ |
258 | ||
4be44fcd | 259 | acpi_ut_remove_reference(return_desc1); |
1da177e4 LT |
260 | } |
261 | ||
4be44fcd | 262 | return_ACPI_STATUS(status); |
1da177e4 LT |
263 | } |
264 | ||
1da177e4 LT |
265 | /******************************************************************************* |
266 | * | |
267 | * FUNCTION: acpi_ex_opcode_2A_1T_1R | |
268 | * | |
269 | * PARAMETERS: walk_state - Current walk state | |
270 | * | |
271 | * RETURN: Status | |
272 | * | |
273 | * DESCRIPTION: Execute opcode with two arguments, one target, and a return | |
274 | * value. | |
275 | * | |
276 | ******************************************************************************/ | |
277 | ||
4be44fcd | 278 | acpi_status acpi_ex_opcode_2A_1T_1R(struct acpi_walk_state *walk_state) |
1da177e4 | 279 | { |
4be44fcd LB |
280 | union acpi_operand_object **operand = &walk_state->operands[0]; |
281 | union acpi_operand_object *return_desc = NULL; | |
282 | acpi_integer index; | |
283 | acpi_status status = AE_OK; | |
284 | acpi_size length; | |
1da177e4 | 285 | |
b229cf92 | 286 | ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_1T_1R, |
4be44fcd | 287 | acpi_ps_get_opcode_name(walk_state->opcode)); |
1da177e4 | 288 | |
44f6c012 RM |
289 | /* Execute the opcode */ |
290 | ||
1da177e4 | 291 | if (walk_state->op_info->flags & AML_MATH) { |
52fc0b02 | 292 | |
1da177e4 LT |
293 | /* All simple math opcodes (add, etc.) */ |
294 | ||
4be44fcd | 295 | return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); |
1da177e4 LT |
296 | if (!return_desc) { |
297 | status = AE_NO_MEMORY; | |
298 | goto cleanup; | |
299 | } | |
300 | ||
4be44fcd LB |
301 | return_desc->integer.value = |
302 | acpi_ex_do_math_op(walk_state->opcode, | |
303 | operand[0]->integer.value, | |
304 | operand[1]->integer.value); | |
1da177e4 LT |
305 | goto store_result_to_target; |
306 | } | |
307 | ||
1da177e4 | 308 | switch (walk_state->opcode) { |
4be44fcd | 309 | case AML_MOD_OP: /* Mod (Dividend, Divisor, remainder_result (ACPI 2.0) */ |
1da177e4 | 310 | |
4be44fcd | 311 | return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); |
1da177e4 LT |
312 | if (!return_desc) { |
313 | status = AE_NO_MEMORY; | |
314 | goto cleanup; | |
315 | } | |
316 | ||
317 | /* return_desc will contain the remainder */ | |
318 | ||
4be44fcd LB |
319 | status = acpi_ut_divide(operand[0]->integer.value, |
320 | operand[1]->integer.value, | |
321 | NULL, &return_desc->integer.value); | |
1da177e4 LT |
322 | break; |
323 | ||
4be44fcd | 324 | case AML_CONCAT_OP: /* Concatenate (Data1, Data2, Result) */ |
1da177e4 | 325 | |
4be44fcd LB |
326 | status = acpi_ex_do_concatenate(operand[0], operand[1], |
327 | &return_desc, walk_state); | |
1da177e4 LT |
328 | break; |
329 | ||
4be44fcd | 330 | case AML_TO_STRING_OP: /* to_string (Buffer, Length, Result) (ACPI 2.0) */ |
1da177e4 LT |
331 | |
332 | /* | |
333 | * Input object is guaranteed to be a buffer at this point (it may have | |
44f6c012 RM |
334 | * been converted.) Copy the raw buffer data to a new object of |
335 | * type String. | |
1da177e4 LT |
336 | */ |
337 | ||
338 | /* | |
339 | * Get the length of the new string. It is the smallest of: | |
340 | * 1) Length of the input buffer | |
341 | * 2) Max length as specified in the to_string operator | |
342 | * 3) Length of input buffer up to a zero byte (null terminator) | |
343 | * | |
344 | * NOTE: A length of zero is ok, and will create a zero-length, null | |
345 | * terminated string. | |
346 | */ | |
347 | length = 0; | |
348 | while ((length < operand[0]->buffer.length) && | |
4be44fcd LB |
349 | (length < operand[1]->integer.value) && |
350 | (operand[0]->buffer.pointer[length])) { | |
1da177e4 | 351 | length++; |
1da177e4 LT |
352 | } |
353 | ||
354 | /* Allocate a new string object */ | |
355 | ||
4be44fcd | 356 | return_desc = acpi_ut_create_string_object(length); |
1da177e4 LT |
357 | if (!return_desc) { |
358 | status = AE_NO_MEMORY; | |
359 | goto cleanup; | |
360 | } | |
361 | ||
c51a4de8 BM |
362 | /* |
363 | * Copy the raw buffer data with no transform. | |
364 | * (NULL terminated already) | |
365 | */ | |
4be44fcd LB |
366 | ACPI_MEMCPY(return_desc->string.pointer, |
367 | operand[0]->buffer.pointer, length); | |
1da177e4 LT |
368 | break; |
369 | ||
44f6c012 RM |
370 | case AML_CONCAT_RES_OP: |
371 | ||
372 | /* concatenate_res_template (Buffer, Buffer, Result) (ACPI 2.0) */ | |
1da177e4 | 373 | |
4be44fcd LB |
374 | status = acpi_ex_concat_template(operand[0], operand[1], |
375 | &return_desc, walk_state); | |
1da177e4 LT |
376 | break; |
377 | ||
4be44fcd | 378 | case AML_INDEX_OP: /* Index (Source Index Result) */ |
1da177e4 LT |
379 | |
380 | /* Create the internal return object */ | |
381 | ||
4be44fcd LB |
382 | return_desc = |
383 | acpi_ut_create_internal_object(ACPI_TYPE_LOCAL_REFERENCE); | |
1da177e4 LT |
384 | if (!return_desc) { |
385 | status = AE_NO_MEMORY; | |
386 | goto cleanup; | |
387 | } | |
388 | ||
52fc0b02 BM |
389 | /* Initialize the Index reference object */ |
390 | ||
44f6c012 | 391 | index = operand[1]->integer.value; |
52fc0b02 BM |
392 | return_desc->reference.offset = (u32) index; |
393 | return_desc->reference.opcode = AML_INDEX_OP; | |
44f6c012 | 394 | |
52fc0b02 BM |
395 | /* |
396 | * At this point, the Source operand is a String, Buffer, or Package. | |
397 | * Verify that the index is within range. | |
398 | */ | |
399 | switch (ACPI_GET_OBJECT_TYPE(operand[0])) { | |
400 | case ACPI_TYPE_STRING: | |
1da177e4 | 401 | |
52fc0b02 BM |
402 | if (index >= operand[0]->string.length) { |
403 | status = AE_AML_STRING_LIMIT; | |
404 | } | |
405 | ||
406 | return_desc->reference.target_type = | |
407 | ACPI_TYPE_BUFFER_FIELD; | |
408 | break; | |
409 | ||
410 | case ACPI_TYPE_BUFFER: | |
411 | ||
412 | if (index >= operand[0]->buffer.length) { | |
413 | status = AE_AML_BUFFER_LIMIT; | |
414 | } | |
415 | ||
416 | return_desc->reference.target_type = | |
417 | ACPI_TYPE_BUFFER_FIELD; | |
418 | break; | |
419 | ||
420 | case ACPI_TYPE_PACKAGE: | |
1da177e4 LT |
421 | |
422 | if (index >= operand[0]->package.count) { | |
1da177e4 | 423 | status = AE_AML_PACKAGE_LIMIT; |
1da177e4 LT |
424 | } |
425 | ||
426 | return_desc->reference.target_type = ACPI_TYPE_PACKAGE; | |
4be44fcd LB |
427 | return_desc->reference.where = |
428 | &operand[0]->package.elements[index]; | |
52fc0b02 | 429 | break; |
1da177e4 | 430 | |
52fc0b02 | 431 | default: |
1da177e4 | 432 | |
52fc0b02 BM |
433 | status = AE_AML_INTERNAL; |
434 | goto cleanup; | |
435 | } | |
436 | ||
437 | /* Failure means that the Index was beyond the end of the object */ | |
438 | ||
439 | if (ACPI_FAILURE(status)) { | |
440 | ACPI_EXCEPTION((AE_INFO, status, | |
441 | "Index (%X%8.8X) is beyond end of object", | |
442 | ACPI_FORMAT_UINT64(index))); | |
443 | goto cleanup; | |
1da177e4 LT |
444 | } |
445 | ||
446 | /* | |
8313524a | 447 | * Save the target object and add a reference to it for the life |
52fc0b02 | 448 | * of the index |
1da177e4 | 449 | */ |
8313524a | 450 | return_desc->reference.object = operand[0]; |
4be44fcd | 451 | acpi_ut_add_reference(operand[0]); |
1da177e4 | 452 | |
1da177e4 LT |
453 | /* Store the reference to the Target */ |
454 | ||
4be44fcd | 455 | status = acpi_ex_store(return_desc, operand[2], walk_state); |
1da177e4 LT |
456 | |
457 | /* Return the reference */ | |
458 | ||
459 | walk_state->result_obj = return_desc; | |
460 | goto cleanup; | |
461 | ||
1da177e4 LT |
462 | default: |
463 | ||
b8e4d893 BM |
464 | ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", |
465 | walk_state->opcode)); | |
1da177e4 LT |
466 | status = AE_AML_BAD_OPCODE; |
467 | break; | |
468 | } | |
469 | ||
4be44fcd | 470 | store_result_to_target: |
1da177e4 | 471 | |
4be44fcd | 472 | if (ACPI_SUCCESS(status)) { |
1da177e4 LT |
473 | /* |
474 | * Store the result of the operation (which is now in return_desc) into | |
475 | * the Target descriptor. | |
476 | */ | |
4be44fcd LB |
477 | status = acpi_ex_store(return_desc, operand[2], walk_state); |
478 | if (ACPI_FAILURE(status)) { | |
1da177e4 LT |
479 | goto cleanup; |
480 | } | |
481 | ||
482 | if (!walk_state->result_obj) { | |
483 | walk_state->result_obj = return_desc; | |
484 | } | |
485 | } | |
486 | ||
4be44fcd | 487 | cleanup: |
1da177e4 LT |
488 | |
489 | /* Delete return object on error */ | |
490 | ||
4be44fcd LB |
491 | if (ACPI_FAILURE(status)) { |
492 | acpi_ut_remove_reference(return_desc); | |
1da177e4 LT |
493 | } |
494 | ||
4be44fcd | 495 | return_ACPI_STATUS(status); |
1da177e4 LT |
496 | } |
497 | ||
1da177e4 LT |
498 | /******************************************************************************* |
499 | * | |
500 | * FUNCTION: acpi_ex_opcode_2A_0T_1R | |
501 | * | |
502 | * PARAMETERS: walk_state - Current walk state | |
503 | * | |
504 | * RETURN: Status | |
505 | * | |
506 | * DESCRIPTION: Execute opcode with 2 arguments, no target, and a return value | |
507 | * | |
508 | ******************************************************************************/ | |
509 | ||
4be44fcd | 510 | acpi_status acpi_ex_opcode_2A_0T_1R(struct acpi_walk_state *walk_state) |
1da177e4 | 511 | { |
4be44fcd LB |
512 | union acpi_operand_object **operand = &walk_state->operands[0]; |
513 | union acpi_operand_object *return_desc = NULL; | |
514 | acpi_status status = AE_OK; | |
515 | u8 logical_result = FALSE; | |
1da177e4 | 516 | |
b229cf92 | 517 | ACPI_FUNCTION_TRACE_STR(ex_opcode_2A_0T_1R, |
4be44fcd | 518 | acpi_ps_get_opcode_name(walk_state->opcode)); |
1da177e4 LT |
519 | |
520 | /* Create the internal return object */ | |
521 | ||
4be44fcd | 522 | return_desc = acpi_ut_create_internal_object(ACPI_TYPE_INTEGER); |
1da177e4 LT |
523 | if (!return_desc) { |
524 | status = AE_NO_MEMORY; | |
525 | goto cleanup; | |
526 | } | |
527 | ||
44f6c012 RM |
528 | /* Execute the Opcode */ |
529 | ||
530 | if (walk_state->op_info->flags & AML_LOGICAL_NUMERIC) { | |
52fc0b02 | 531 | |
44f6c012 RM |
532 | /* logical_op (Operand0, Operand1) */ |
533 | ||
4be44fcd LB |
534 | status = acpi_ex_do_logical_numeric_op(walk_state->opcode, |
535 | operand[0]->integer. | |
536 | value, | |
537 | operand[1]->integer. | |
538 | value, &logical_result); | |
1da177e4 | 539 | goto store_logical_result; |
4be44fcd | 540 | } else if (walk_state->op_info->flags & AML_LOGICAL) { |
52fc0b02 | 541 | |
44f6c012 RM |
542 | /* logical_op (Operand0, Operand1) */ |
543 | ||
4be44fcd LB |
544 | status = acpi_ex_do_logical_op(walk_state->opcode, operand[0], |
545 | operand[1], &logical_result); | |
1da177e4 LT |
546 | goto store_logical_result; |
547 | } | |
548 | ||
1da177e4 | 549 | switch (walk_state->opcode) { |
4be44fcd | 550 | case AML_ACQUIRE_OP: /* Acquire (mutex_object, Timeout) */ |
1da177e4 | 551 | |
4be44fcd LB |
552 | status = |
553 | acpi_ex_acquire_mutex(operand[1], operand[0], walk_state); | |
1da177e4 | 554 | if (status == AE_TIME) { |
4be44fcd | 555 | logical_result = TRUE; /* TRUE = Acquire timed out */ |
1da177e4 LT |
556 | status = AE_OK; |
557 | } | |
558 | break; | |
559 | ||
4be44fcd | 560 | case AML_WAIT_OP: /* Wait (event_object, Timeout) */ |
1da177e4 | 561 | |
4be44fcd | 562 | status = acpi_ex_system_wait_event(operand[1], operand[0]); |
1da177e4 | 563 | if (status == AE_TIME) { |
4be44fcd | 564 | logical_result = TRUE; /* TRUE, Wait timed out */ |
1da177e4 LT |
565 | status = AE_OK; |
566 | } | |
567 | break; | |
568 | ||
1da177e4 LT |
569 | default: |
570 | ||
b8e4d893 BM |
571 | ACPI_ERROR((AE_INFO, "Unknown AML opcode %X", |
572 | walk_state->opcode)); | |
1da177e4 LT |
573 | status = AE_AML_BAD_OPCODE; |
574 | goto cleanup; | |
575 | } | |
576 | ||
4be44fcd | 577 | store_logical_result: |
1da177e4 LT |
578 | /* |
579 | * Set return value to according to logical_result. logical TRUE (all ones) | |
580 | * Default is FALSE (zero) | |
581 | */ | |
582 | if (logical_result) { | |
583 | return_desc->integer.value = ACPI_INTEGER_MAX; | |
584 | } | |
585 | ||
586 | walk_state->result_obj = return_desc; | |
587 | ||
4be44fcd | 588 | cleanup: |
1da177e4 LT |
589 | |
590 | /* Delete return object on error */ | |
591 | ||
4be44fcd LB |
592 | if (ACPI_FAILURE(status)) { |
593 | acpi_ut_remove_reference(return_desc); | |
1da177e4 LT |
594 | } |
595 | ||
4be44fcd | 596 | return_ACPI_STATUS(status); |
1da177e4 | 597 | } |